Ion exchange for the desalination and treatment of wastewater

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dc.contributor.authorGiddey, Trevor Baden Sydneyen_ZA
dc.date.accessioned2015-03-09T13:50:38Z
dc.date.available2015-03-09T13:50:38Z
dc.date.issued1979en_ZA
dc.descriptionBibliography: p. 195-204.en_ZA
dc.description.abstractIon exchange for the desalination and tertiary treatment of waste water has involved the development of both the theory and practice of continuous countercurrent ion exchange (CCIX). The need for process development arose after a comprehensive review of the principles and properties of ion exchange as these applied to the treatment of saline sewage plant discharge streams. Initial cost studies also indicated that regenerant chemicals constituted the major cost item in an IX plant. On the basis, therefore, of the IX literature review and the cost exercise, the decision was made. to use CCIX and to develop a specific process for the treatment of secondary sewage effluent. A study was made of the kinetic, equilibrium and organic absorption properties of cation and anion resins and how these properties related to the operation of a CCIX unit. Simultaneously, a novel regenerant chemical recovery scheme based on the use of nitric acid and ammonia was formulated and tested. The various ion exchange reactions involved in the overall desalination and tertiary treatment process were monitored in a CCIX column and from these tests, a steady state theory of the operation of such a column incorporating the previously determined resin exchange properties was proposed and verified. The next phase of the investigation involved the design, construction and commissioning of an interlinked five column CCIX pilot plant. This was also a new development in that this complexity of CCIX plant had not formerly been operated. Initial test work involved synthetic saline solutions and an hydraulic investigation. This was followed by treatment of secondary sewage effluent during which it was shown that combined desalination and organic removal could be achieved, regenerant chemicals could be recovered and feed water dissolved components concentrated for discharge.en_ZA
dc.identifier.apacitationGiddey, T. B. S. (1979). <i>Ion exchange for the desalination and treatment of wastewater</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/12586en_ZA
dc.identifier.chicagocitationGiddey, Trevor Baden Sydney. <i>"Ion exchange for the desalination and treatment of wastewater."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1979. http://hdl.handle.net/11427/12586en_ZA
dc.identifier.citationGiddey, T. 1979. Ion exchange for the desalination and treatment of wastewater. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Giddey, Trevor Baden Sydney AB - Ion exchange for the desalination and tertiary treatment of waste water has involved the development of both the theory and practice of continuous countercurrent ion exchange (CCIX). The need for process development arose after a comprehensive review of the principles and properties of ion exchange as these applied to the treatment of saline sewage plant discharge streams. Initial cost studies also indicated that regenerant chemicals constituted the major cost item in an IX plant. On the basis, therefore, of the IX literature review and the cost exercise, the decision was made. to use CCIX and to develop a specific process for the treatment of secondary sewage effluent. A study was made of the kinetic, equilibrium and organic absorption properties of cation and anion resins and how these properties related to the operation of a CCIX unit. Simultaneously, a novel regenerant chemical recovery scheme based on the use of nitric acid and ammonia was formulated and tested. The various ion exchange reactions involved in the overall desalination and tertiary treatment process were monitored in a CCIX column and from these tests, a steady state theory of the operation of such a column incorporating the previously determined resin exchange properties was proposed and verified. The next phase of the investigation involved the design, construction and commissioning of an interlinked five column CCIX pilot plant. This was also a new development in that this complexity of CCIX plant had not formerly been operated. Initial test work involved synthetic saline solutions and an hydraulic investigation. This was followed by treatment of secondary sewage effluent during which it was shown that combined desalination and organic removal could be achieved, regenerant chemicals could be recovered and feed water dissolved components concentrated for discharge. DA - 1979 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1979 T1 - Ion exchange for the desalination and treatment of wastewater TI - Ion exchange for the desalination and treatment of wastewater UR - http://hdl.handle.net/11427/12586 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/12586
dc.identifier.vancouvercitationGiddey TBS. Ion exchange for the desalination and treatment of wastewater. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1979 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/12586en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil Engineeringen_ZA
dc.titleIon exchange for the desalination and treatment of wastewateren_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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